03-27-2018, 03:05 PM
(03-27-2018, 02:44 PM)Senor_Taylor Wrote: That's what I thought. Just seems to me that would mess up the piston as well, which doesn't seem to be a concern?
it does usually leave a tiny crescent mark on the piston top, but its usually not enough to actually affect compression or combustion swirl. sometimes you can even sand it out if the contact is light enough
![[Image: 192596d1250292799-piston-valve-contact-m...re-001.jpg]](https://ls1tech.com/forums/attachments/forced-induction/192596d1250292799-piston-valve-contact-my-pistons-trash-now-picture-001.jpg)
2010 Civic Si
2019 4Runner TRD Off-Road
--------------------------
Past: 03 Xterra SE 4x4 | 05 Impreza 2.5RS | 99.5 A4 Quattro 1.8T | 01 Accord EX | 90 Maxima GXE | 96 Explorer XLT
2019 4Runner TRD Off-Road
--------------------------
Past: 03 Xterra SE 4x4 | 05 Impreza 2.5RS | 99.5 A4 Quattro 1.8T | 01 Accord EX | 90 Maxima GXE | 96 Explorer XLT